I failed my first drivers test because I missed a stop sign. Oh well.
Generally, as long as no one else is in the car with me to distract me, I do fine with driving (if there is someone else in the car, I tend to drive slower to the point I have people up my butt and the passenger usually has to remind me to do the speed limit at least). I have been in a couple accidents-- the biggest one was not my fault. My list of accidents: 1. car totaled, 2. hit someone's side after pulling out of the yellow lane and not seeing them, and 3/4. two fender benders.
I can be in la-la land many times, but I have good reaction time and don't space out for long. Mostly, I just get REALLY angry at the idiots that drive on the road, who ride my tail, who speed recklessly-- not just speed but swerving in and out of lanes, etc.-- who don't use their turn signals, people talking on their cell phones, and the list goes on. I am usually fairly grumpy off by the time I have arrived at my destination. I enjoy driving, but I wish I had the roads mostly to myself. I hate people when they are on the roads with me, arssholes mostly the lot of them. Tailgaiters are my biggest pet peeve.